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13302131131 = 42131596511
BaseRepresentation
bin11000110001101111…
…00110100110111011
31021100001022021110101
430120313212212323
5204220321144011
610035542500231
7650432151262
oct143067464673
937301267411
1013302131131
115706785003
1226b2a34677
13133cb67813
149029355d9
1552cc322c1
hex318de69bb

13302131131 has 4 divisors (see below), whose sum is σ = 13333728064. Its totient is φ = 13270534200.

The previous prime is 13302131113. The next prime is 13302131239. The reversal of 13302131131 is 13113120331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13302131131 - 233 = 4712196539 is a prime.

It is a super-2 number, since 2×133021311312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13302131099 and 13302131108.

It is not an unprimeable number, because it can be changed into a prime (13302131111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15797835 + ... + 15798676.

It is an arithmetic number, because the mean of its divisors is an integer number (3333432016).

Almost surely, 213302131131 is an apocalyptic number.

13302131131 is a deficient number, since it is larger than the sum of its proper divisors (31596933).

13302131131 is an equidigital number, since it uses as much as digits as its factorization.

13302131131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31596932.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13302131131 its reverse (13113120331), we get a palindrome (26415251462).

The spelling of 13302131131 in words is "thirteen billion, three hundred two million, one hundred thirty-one thousand, one hundred thirty-one".

Divisors: 1 421 31596511 13302131131